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<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <div>我是一个div</div>
    <script src="./js/jquery.min.js"></script>
    <script>
        /* 
            JQ的DOM删除
                remove  => 删除
                empty   => 清空
        */
    //    $("body").remove();
          $("body").empty();
    </script>
</body>
</html>